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Optical Z-Limit Sensor
by jfenech
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An easy to build, easily adjustable consistent optical Z-Axis end stop sensor, that has permanently solved all my bed adhesion problems !
Apart from the printed parts, you will need :-
* 2 M3x50 Screws (These will be used as rails)
* 1 M3 x 30 Screw (this will adjust the height)
* 5 M3 Nuts (2 on each M3x50 to hold the spring in place, 1 for the height adjuster)
* 2 4 X M3 Washers (to sandwich the springs)
* 2 Springs (diameter of around 3.5mm)
* 2 M2 Screws + nuts (can use the ones
Apart from the printed parts, you will need :-
* 2 M3x50 Screws (These will be used as rails)
* 1 M3 x 30 Screw (this will adjust the height)
* 5 M3 Nuts (2 on each M3x50 to hold the spring in place, 1 for the height adjuster)
* 2 4 X M3 Washers (to sandwich the springs)
* 2 Springs (diameter of around 3.5mm)
* 2 M2 Screws + nuts (can use the ones
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